Funding for this research was provided by:
Cancer Research UK (22647)
Received: 12 June 2020
Accepted: 10 March 2021
First Online: 8 April 2021
Change Date: 26 May 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/S12885-021-08369-4
: Our local ethical committee (Manchester University NHS Foundation Trust) stated that as all data were collected as part of the routine clinical record and were compiled retrospectively and anonymously, formal ethical review was not required.
: Not applicable.
: All authors declare they have no relevant conflicts of interest.